The bulbils range from 1/2 inch to 1/4 inch in diameter and number approximately 500 per lb, for a total of 2500 "sets". I would plant them now at 2" spacing, and expect them to each produce 1-5 saleable scallions within 60 days. This amount should plant around 400 feet of row at 2" spacing, for an approximate yield of 7500 scallions.
I currently sell the scallions in an 8-10 stalk bunch banded together.

The variety is reliably hardy at low zones, but will go dormant during winter and reemerge in spring to produce at least 1" underground bulbs which can be sold as 'shallots' if thinned to 4" between each plant. The 'shallots' are white with a purple blush on the outer layers. By midsummer the plants will produce new bulbils on flower stalks which can be replanted to renew the growing cycle. Thus, the plants yield three saleable items, topset bulbils and underground bulbs for 'shallots'(midsummer), and scallions(late summer/fall).

I have found them far easier to plant than seeded onions, planting is basically just like bush beans, drag a 1-2" deep furrow in the soil and drop in the sets, cover and watch them grow. I am successful using wood chip or shredded leaf mulch over the row immediately after planting, and the plants are able to easily emerge through
2-3" depth of mulch. They are also cheaper than purchased onions sets because they reproduce themselves and once the growing cycle is established no further purchase is necessary.
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Item 2
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I also have eight lbs of true shallots which are an unnamed white skinned variety from Louisiana. The sets are 3/4 to 1" in diameter with good yields of shallots up to 2" diameter. I would like in exchange some variety of shallot, asian chives or multiplier onions, but would consider other planting material of equal value, no ornamentals or seeds, please. I would prefer one 8 lb trade for this material, but if no takers would consider a smaller trade.

Please let me know via email regarding trades for eithr of the two items.
Thanks,
Jay